i am trying to beat the twins but every time i battle them i die and i have a huge battleground and two wired up heart statues

my equipment is:

hallowed chestplate

admanite helmet

admanite leggings

armored star cloak

gaurding angel wings

warding mana flower

warding spectre boots

guarding obsidian shield

total 64 def.

my weapons are:

hurtful excalibur

celestial crystal storm

ruthless dao of pow

5 light disks

superior megashark

am i prepared?

because i have faced them 7 times and died every time

plz tell me suggestions